Boeing just issued a safety warning about its 737 MAX jet — here are the 40 airlines that fly the plane

Through September, Boeing has taken orders for 4,783 737 MAX aircraft with 219 delivered to customers.

The 737 MAX currently operates with 40 airlines around.

The Boeing 737 MAX entered service in 2017 to great fanfare. The jet is the latest in Boeing's long line of hot-selling 737 family narrow-body airliner. The 737 MAX has earned praise for its advanced aerodynamics and fuel-efficient engines.

In fact, the 737 remains the best selling airliner of all time while the new MAX variant quickly became quickest selling plane in Boeing history. Through September, Boeing has sold 14,985 737s since the 1960s with 4,783 of them the MAX variant. In total, 219 737 MAX aircraft have been delivered to airlines and leasing companies.

In October, the tragic crash of Lion Air Flight JT610 brought the jet back to the forefront the public consciousness. Flight JT610, which killed all 189 people on board, was the first major accident involving the 737 MAX.